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Process for producing CuSO2‰À5H2O by using copper oxide ore wet method

A copper oxide ore, cuso4·5h2o technology, applied in the chemical industry, can solve the problems of serious industrial pollution, complicated process and high cost

Inactive Publication Date: 2003-09-24
沈超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the production of CuSO from pure copper by pyrometallurgy 4 ·5H 2 The process of O is complicated, the investment is large, the cost is high, and the industrial pollution is serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: directly produce CuSO by ore 4 ·5H 2 O: Select copper oxide ore with a grade > 4, crush and ball mill, add acidifying material, clarification and filtration, first acid adjustment clarification filtration, second acid adjustment clarification filtration, filter cake washing with water to prepare mother liquor, concentrated crystallization, drying, and weight Crystallization into finished products, each step is described as follows:

[0014] Crushing and ball milling: the ore is pulverized by a pulverizer and ball milled by a ball mill;

[0015] Adding acidizing material: Put the ore powder after ball milling into the chemical material pool or chemical material pot with agitator, and heat the chemical material with mixed acid;

[0016] Clarification and filtration: remove the filter residue (i.e. spun yarn) to obtain the first filtrate;

[0017] The first acid adjustment and clarification filtration: after the acidity adjustment and iron removal, the sec...

Embodiment 2

[0023] Embodiment 2, first produce sponge copper by ore, then produce CuSO by sponge copper 4 ·5H 2 O: Take copper oxide ore with low grade and many interfering impurities, crush and ball mill, add acidification material, clarification and filtration, second clarification and filtration, preparation of sponge copper, roasting, hot mixed acid melting copper, concentration and crystallization, and drying. The finished product, each step is described as follows:

[0024] Crushing and ball milling: the ore is pulverized by a pulverizer and ball milled by a ball mill;

[0025] Adding acidizing material: put the ore powder after ball milling into the chemical pool or chemical material pot with agitator, and heat the chemical material with mixed acid;

[0026] Clarification and filtration: remove the filter residue (i.e. fine sand) to obtain the first filtrate;

[0027] Filtration for the second time: the filtrate is clarified and filtered again to obtain the second filtrate;

[...

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PUM

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Abstract

The wet production process for producing CuSO4.5H2O by using copper oxdie core has no need of complex procedures of ore flotation, high temp. smelting and electrolysis. It only includes the followingsteps: pulverizing copper oxdie ore, ball-grinding, directly using H2SO4 to dissolve raw material, clearing slurry and filtering, analyzing and checking or directly concentrating, centrifugally-drying to obtain CuSO4.5H2O; or placing the above-mentioned filtrate in a replacement tank and replacing the copper sponge with Fe (Zn), roasting the copper sponge, and using dilute H2SO4 thermal solution to dissolve copper by blowing air to obtain CuSO4 mother liquid, finally concentrating said mother liquor, crystallizing and centrifugall-drying so as to obtain CuSO4.H2O blue crystal.

Description

(1) Technical field [0001] The present invention relates to CuSO 4 ·5H 2 The copper oxide ore wet production process of O belongs to the field of chemical industry. (2) Background technology [0002] The current industrial production of CuSO 4 ·5H 2 O often use hot concentrated H 2 SO 4 Oxidize metallic copper, or in the case of sufficient air, dilute H with heat 2 SO 4 A method of dissolving metallic copper. The source of metallic copper is usually copper sulfide minerals such as chalcopyrite (CuFeS 2 ), Bornite (Cu 3 FeS 4 ), chalcocite (Cu 2 S), copper blue (CuS), etc., which are smelted by matte smelting method and fire method. The process needs to go through ore crushing, ball milling, and flotation to produce refined copper ore, and then oxidize and roast the refined copper ore in a fluidized fluidized furnace. Baked sand, baked sand is smelted at high temperature in a reverberatory furnace to make matte (MCu 2 S+NFeS), the matte copp...

Claims

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Application Information

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IPC IPC(8): C01G3/10C22B3/06C22B3/22
CPCY02P10/20
Inventor 沈超
Owner 沈超
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